CBSE > Class 09 > Mathematics | CBSE Board | Homework Help

Let we will solve one example Consider the following data of marks obtained by 30 students :84,75,93,48,60,57,61,67,53,39,50,66,81,49,54,88,78,64,35,46,52,73,59,72,87,44,70,89,82. Range =highest mark -lowest mark 93-35=58 Class size =10 No. Of classes =range/class size =58/10=5.8=6(say) We should have 6 classes each of size 10 Classes are 35-44,45-54,55-64,65-74,75-84 and 85-94 Class intervals :each group formed above is called a class intervals.

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What is prime no and composite no

Posted by Diksha Chandra 7 years, 9 months ago

CBSE > Class 09 > Mathematics

1 answers

Jatin Singh 7 years, 9 months ago

Prime no =factor only 1 and itself Composite no =more than 2 factor

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Find the angle which is equal to it's complement

Posted by Deepti Jaiswal 7 years, 9 months ago

CBSE > Class 09 > Mathematics

2 answers

Abhinay Kumar 7 years, 9 months ago

45 degree

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Anushka Dongre 7 years, 9 months ago

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The length of two adjacent sides of parallelogram are 17cm and 12cm one of its diagonal is 25cm long find the area of parallelogram also find the area of altitude from vertex on the sides of length 12cm

Posted by Ketan Saini 7 years, 9 months ago

CBSE > Class 09 > Mathematics

0 answers

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Angle B is greater than angle C and L is a point on BC s.t. AL is the bisector of angle BAC in triangle ABC .If AM is perpendicular to BC, prove that angle LAM =1/2 (angle B - angle C).

Posted by Archi Mehta 7 years, 9 months ago

CBSE > Class 09 > Mathematics

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5+5+5=550 how it's possible ( in compitition exam)

Posted by Dikshita? Bunkar 7 years, 9 months ago

CBSE > Class 09 > Mathematics

6 answers

Dikshita? Bunkar 7 years, 9 months ago

Hello☺

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Radhe Yadav 7 years, 9 months ago

Kya pass ???

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Dikshita? Bunkar 7 years, 9 months ago

Ok ok paas ho gaye aap

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Radhe Yadav 7 years, 9 months ago

Jo plus hai wo 4 ho jata hai equation Mai like 545+5= 550

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Dikshita? Bunkar 7 years, 9 months ago

How

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Radhe Yadav 7 years, 9 months ago

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Construction 11.4 and 11.5 how to draw

Posted by Sudiksha Verma 7 years, 9 months ago

CBSE > Class 09 > Mathematics

1 answers

Raju Yadav 7 years, 9 months ago

not possible in this app plz check on Google

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6 rational no. Between 3.2 and 3.5

Posted by Arushi Singj 7 years, 9 months ago

CBSE > Class 09 > Mathematics

4 answers

Ankita ?? Arpita☺️ 7 years, 9 months ago

Hii..,✋✋

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Saumya Srivastav 7 years, 9 months ago

hi Kya kar rha ho.

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Radhe Yadav 7 years, 9 months ago

Hii

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Saumya Srivastav 7 years, 9 months ago

ya ,me .??

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Find the coordinates of the point where the line 2x-y=3 meets both the axis

Posted by Joshin Saji 7 years, 9 months ago

CBSE > Class 09 > Mathematics

2 answers

Nisha Gurjar 7 years, 9 months ago

Find the coordinates of the points where the line 2x - y = 3 meets both the axis. Therefore, (0, -3) is the point of intersection of the line 2x - y = 3 with y-axis. Therefore, (3/2, 0) is the point of intersection of the line 2x - y = 3 with x-axis.

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Joshin Saji 7 years, 9 months ago

Plz tell me it will come in exam

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125x-25/5x = find x, is it a proper question

Posted by Tejaswini Raghuram 7 years, 9 months ago

CBSE > Class 09 > Mathematics